1420965 has 48 divisors (see below), whose sum is σ = 3040128. Its totient is φ = 597888.

The previous prime is 1420949. The next prime is 1420967. The reversal of 1420965 is 5690241.

It is not a de Polignac number, because 1420965 - 2⁴ = 1420949 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420967) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3922 + ... + 4268.

It is an arithmetic number, because the mean of its divisors is an integer number (63336).

2^1420965 is an apocalyptic number.

1420965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1420965 is an abundant number, since it is smaller than the sum of its proper divisors (1619163).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1420965 is a wasteful number, since it uses less digits than its factorization.

1420965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378 (or 375 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 1420965 is about 1192.0423650190. The cubic root of 1420965 is about 112.4245419914.

The spelling of 1420965 in words is "one million, four hundred twenty thousand, nine hundred sixty-five".